"Stainless steel bolt in rock installed in 1992."
| 01/12/1994 | 01/01/1996 | 01/11/1996 | 01/01/1998 | 01/01/2000 | 01/02/2002 | 01/04/2006 | 01/03/2009 |
| GA | GA | GA | GA | GA | GA | GA | GA |
| AAE BM1 RM2 | AAE BM1 RM2 | AAE BM1 RM2 | AAE BM1 RM2 | AAE BM1 RM2 | AAE BM1 RM2 | AAE BM1 RM2 | AAE BM1 RM2 |